Maxwell's equations

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    Magnet Essay

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    field will flow such that it will create its own magnetic field that opposes the magnetic field that created it.” (Wagon, 1999) Figure 3 below shows that this is resultant of the field wanting to cancel out the magnetic field in the metal, as metals don’t resist having electric or magnetic fields inside of them, hence they are good conductors. The above equation describes the shape of the graph shown below in figure 5, which shows the object starting from still and accelerating in velocity before tending towards a constant velocity. Therefore it can be expected that the resultant graph velocity graph looks as follows: The equation for 〖 v〗_t can be found by stating that the acceleration of the magnet as it rolls down the incline at a constant speed must be zero; therefore the net force acting upon it must also be zero. Resulting from the motion of the magnet being a combined result of the retarding and constant forces, the magnets motion therefore consists of an initial acceleration followed by reaching a terminal velocity given by Equation 3. Therefore displacement can be found through integrating equation 3: This equation can be applied to the experimental data collected in the results by adjusting the parameters v_t and τ. Many experiments have been previously undertaken on the phenomenon of a magnet slowly sliding down a metallic incline, this results from it being a pronounced demonstration of the force eddy currents produce. This is largely related to the Maxwellian…

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    Isaac Newton's Theory

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    No one would have believed, in the last years of the 19th century, that physics was heading for a crisis. It seemed like all the large questions had been answered. The behaviour of bodies, from asteroids to galaxies, was predicted by Sir Isaac Newton 's laws of gravity and motion. Magnetism, electricity and light were linked by James Clerk Maxwell’s Equations. The understanding of the atom had reached the plum pudding stage, where an atom was a globe of 'stuff ' with the positive and negative…

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    voltage for a long time, if there is no space charge built up, the current density gain the steady state value, and equation 3.2 and 3.4 become: ∇.J=∇.(σE)=0 (3.6) Based on equation 3.6, the field distribution is depended on conductivity variation inside the material [1, 45, 46]. Furthermore, according to equations 3.5 and 3.6, space charge can be accumulated in insulation material in…

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    Shakess Experiment

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    The aim of this experiment was to build a shake torch and measure the electrical voltage produced when the magnet passes through a coil of wire. Our dependent variables were the amount of magnets (length of magnet) and the amount of shakes. This was done to help us discover if there was a relation between the amount of magnets, and the induced current produced. It was to investigate if a greater magnetic field and increased amount shakes would improve the shake torches ability to light the LED…

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    Cartesian Hydrodynamics

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    astrophysical plasma plasma magnetohydrodynamics plasma transport processes Poisson equation 5230CvMagnetohydrodynamics (including electron magnetohydrodynamics) 5272+vLaboratory studies of space- and astrophysical-plasma processes 5225FiTransport properties I. INTRODUCTION There has been significant recent work on Vlasov-Maxwell (VM) equilibria that are consistent with nonlinear force-free1–8 and “nearly force-free”9 magnetic fields in Cartesian geometry. Therein, force-free refers to…

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    Temporary Magnet Essay

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    CHAPTER II. REVIEW OF THE RELATED LITERATURE A. Temporary Magnet Temporary magnets are those that essentially demonstration like permanent magnets when they are inside a strong magnetic field (Jezek, 2015). They are not like permanent magnets when it's not around in a magnetic field because it loses its own magnetism. Temporary magnets cannot remain magnetized on their own (Boyer 2017). Paperclips, press nails, and other comparative things are cases of temporary magnets. Temporary magnets are…

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    (6) The remaining contribution to the net Coulomb energy comes from the self-interaction of each charge with its own image, which is the so-called “dielectric solvation energy” ()()aaaaHRaaarVrrdrVˆ02ρ∫+=. (7) In above expressions, ()()2rraaℜ=ρ is the electron or hole density, and a = e, h; ()herrW,ˆ is a spherically symmetric component of the point charges direct Coulomb interaction operator, is a spherically symmetric component of the polarization energy operator, and ( herrU,ˆ ()rVˆ is the…

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    We, the students of Professor Bart Goddard’s Differential Equations class (M 427J), are writing to you about a recent incident for which he is at risk of losing his position in the university. During the 12:00 PM class on Wednesday, February 22, 2017, Professor Goddard told a cautionary tale about how, in the Holocaust, Nazi engineers used lime to prevent blood from ruining the train tracks of the trains carrying the Jews to the camps, calling on the engineering students in the audience to…

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    An alternative modeling approach which remedies the computational aspect is differential equations. In contrast to the discrete event simulations, averaged quantities in case of large quantity production predict the time evolution of parts and include the dynamics inside the different production steps. To derive accurate continuous models the overall modeling goal is to transfer as much of the detailed and complex discrete model to the continuous level. This will be achieved regarding dynamic…

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    were a way for professors around the world to teach their classes online for free. Like most others, my thoughts on online education mostly revolved around second-rate scams and suspicious for-profit institutions (I’m looking at you, DeVry). However, curiosity got ahold of me, and I quickly signed up for several courses. As it turned out, these courses were structured similarly to college classes; they consisted of weekly video lectures and a forum for collaboration between the tens…

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